So what? Learn some relevant history. Many of the all-time great USSC Justices never served a day on the bench prior to becoming Justices.
John Marshall, William Rehnquist, Lewis Powell Jr., Abe Fortas, Earl Warren, William Douglas, Felix Frankfurter, Louis Brandeis, etc.
Amy Cony Barrett's resume pales in comparison to Kagan's. Barrett spent a couple of years in private practice, after clerking for Scalia. Then spent the next 15 years as an assistant professor at her alma mater. That's it. She "earned" her nomination to the Federal Appellate Court Circuit (skipping over the federal district court circuit entirely) simply by being the most radical right-wing, anti-abortion FEMALE legal scholar in the country.
Face it, Barrett is just another example of conservative affirmative action. The history of our country is replete with "affirmative action for white people". You people call it "merit", but by any objective standard, it's anything but. And you guys LOVE this stuff, as long as it furthers your interests and agenda.